[INFO] fetching crate walrus 0.23.3... [INFO] checking walrus-0.23.3 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170 [INFO] extracting crate walrus 0.23.3 into /workspace/builds/worker-0-tc1/source [INFO] started tweaking crates.io crate walrus 0.23.3 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate walrus 0.23.3 [INFO] tweaked toml for crates.io crate walrus 0.23.3 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate walrus 0.23.3 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate walrus 0.23.3 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded wasm-encoder v0.214.0 [INFO] [stderr] Downloaded walrus-macro v0.22.0 [INFO] [stderr] Downloaded wasmparser v0.214.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f5c89fc597b13f7600960801f270d4e61cbd5d9041bf2083dbe7f683d51a0f2d [INFO] running `Command { std: "docker" "start" "-a" "f5c89fc597b13f7600960801f270d4e61cbd5d9041bf2083dbe7f683d51a0f2d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f5c89fc597b13f7600960801f270d4e61cbd5d9041bf2083dbe7f683d51a0f2d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f5c89fc597b13f7600960801f270d4e61cbd5d9041bf2083dbe7f683d51a0f2d", kill_on_drop: false }` [INFO] [stdout] f5c89fc597b13f7600960801f270d4e61cbd5d9041bf2083dbe7f683d51a0f2d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] eed5862577ab7a52c534df4bfec2a610ae645f56e64023970ae7c16893abff03 [INFO] running `Command { std: "docker" "start" "-a" "eed5862577ab7a52c534df4bfec2a610ae645f56e64023970ae7c16893abff03", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.20 [INFO] [stderr] Compiling ahash v0.8.11 [INFO] [stderr] Checking aho-corasick v1.1.3 [INFO] [stderr] Compiling indexmap v1.9.3 [INFO] [stderr] Compiling libc v0.2.168 [INFO] [stderr] Compiling serde_json v1.0.133 [INFO] [stderr] Compiling syn v2.0.90 [INFO] [stderr] Compiling semver v1.0.23 [INFO] [stderr] Checking zerocopy v0.7.35 [INFO] [stderr] Compiling anyhow v1.0.94 [INFO] [stderr] Checking equivalent v1.0.1 [INFO] [stderr] Checking hashbrown v0.15.2 [INFO] [stderr] Checking utf8parse v0.2.2 [INFO] [stderr] Checking log v0.4.22 [INFO] [stderr] Checking hashbrown v0.12.3 [INFO] [stderr] Checking anstyle-parse v0.2.6 [INFO] [stderr] Checking crossbeam-epoch v0.9.18 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Compiling heck v0.5.0 [INFO] [stderr] Checking anstyle-query v1.1.2 [INFO] [stderr] Checking colorchoice v1.0.3 [INFO] [stderr] Checking is_terminal_polyfill v1.70.1 [INFO] [stderr] Checking leb128 v0.2.5 [INFO] [stderr] Checking crossbeam-deque v0.8.5 [INFO] [stderr] Checking fallible-iterator v0.2.0 [INFO] [stderr] Checking bitflags v2.6.0 [INFO] [stderr] Checking wasm-encoder v0.214.0 [INFO] [stderr] Checking anstream v0.6.18 [INFO] [stderr] Checking regex-automata v0.4.9 [INFO] [stderr] Checking rayon-core v1.12.1 [INFO] [stderr] Checking humantime v2.1.0 [INFO] [stderr] Checking gimli v0.26.2 [INFO] [stderr] Checking id-arena v2.2.1 [INFO] [stderr] Checking is-terminal v0.4.13 [INFO] [stderr] Checking rayon v1.10.0 [INFO] [stderr] Checking regex v1.11.1 [INFO] [stderr] Checking env_filter v0.1.2 [INFO] [stderr] Checking env_logger v0.11.5 [INFO] [stderr] Compiling serde_derive v1.0.216 [INFO] [stderr] Compiling walrus-macro v0.22.0 [INFO] [stderr] Checking serde v1.0.216 [INFO] [stderr] Checking indexmap v2.7.0 [INFO] [stderr] Checking hashbrown v0.14.5 [INFO] [stderr] Checking ciborium v0.2.2 [INFO] [stderr] Checking wasmparser v0.214.0 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.5.1 [INFO] [stderr] Checking walrus v0.23.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/function_builder.rs:62:22 [INFO] [stdout] | [INFO] [stdout] 62 | pub fn func_body(&mut self) -> InstrSeqBuilder { [INFO] [stdout] | ^^^^^^^^^ --------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 62 | pub fn func_body(&mut self) -> InstrSeqBuilder<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/function_builder.rs:92:22 [INFO] [stdout] | [INFO] [stdout] 92 | pub fn instr_seq(&mut self, id: InstrSeqId) -> InstrSeqBuilder { [INFO] [stdout] | ^^^^^^^^^ --------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 92 | pub fn instr_seq(&mut self, id: InstrSeqId) -> InstrSeqBuilder<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/function_builder.rs:130:31 [INFO] [stdout] | [INFO] [stdout] 130 | pub fn dangling_instr_seq(&mut self, ty: impl Into) -> InstrSeqBuilder { [INFO] [stdout] | ^^^^^^^^^ --------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 130 | pub fn dangling_instr_seq(&mut self, ty: impl Into) -> InstrSeqBuilder<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/module/custom.rs:31:13 [INFO] [stdout] | [INFO] [stdout] 31 | fn data(&self, ids_to_indices: &IdsToIndices) -> Cow<[u8]>; [INFO] [stdout] | ^^^^^ this lifetime flows to the output --------- the lifetime gets resolved as `'_` [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 31 | fn data(&self, ids_to_indices: &IdsToIndices) -> Cow<'_, [u8]>; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/module/custom.rs:118:13 [INFO] [stdout] | [INFO] [stdout] 118 | fn data(&self, _: &IdsToIndices) -> Cow<[u8]> { [INFO] [stdout] | ^^^^^ --------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 118 | fn data(&self, _: &IdsToIndices) -> Cow<'_, [u8]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/tombstone_arena.rs:104:21 [INFO] [stdout] | [INFO] [stdout] 104 | pub fn iter_mut(&mut self) -> IterMut { [INFO] [stdout] | ^^^^^^^^^ ---------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 104 | pub fn iter_mut(&mut self) -> IterMut<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/function_builder.rs:62:22 [INFO] [stdout] | [INFO] [stdout] 62 | pub fn func_body(&mut self) -> InstrSeqBuilder { [INFO] [stdout] | ^^^^^^^^^ --------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 62 | pub fn func_body(&mut self) -> InstrSeqBuilder<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/function_builder.rs:92:22 [INFO] [stdout] | [INFO] [stdout] 92 | pub fn instr_seq(&mut self, id: InstrSeqId) -> InstrSeqBuilder { [INFO] [stdout] | ^^^^^^^^^ --------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 92 | pub fn instr_seq(&mut self, id: InstrSeqId) -> InstrSeqBuilder<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/function_builder.rs:130:31 [INFO] [stdout] | [INFO] [stdout] 130 | pub fn dangling_instr_seq(&mut self, ty: impl Into) -> InstrSeqBuilder { [INFO] [stdout] | ^^^^^^^^^ --------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 130 | pub fn dangling_instr_seq(&mut self, ty: impl Into) -> InstrSeqBuilder<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/module/custom.rs:31:13 [INFO] [stdout] | [INFO] [stdout] 31 | fn data(&self, ids_to_indices: &IdsToIndices) -> Cow<[u8]>; [INFO] [stdout] | ^^^^^ this lifetime flows to the output --------- the lifetime gets resolved as `'_` [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 31 | fn data(&self, ids_to_indices: &IdsToIndices) -> Cow<'_, [u8]>; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/module/custom.rs:118:13 [INFO] [stdout] | [INFO] [stdout] 118 | fn data(&self, _: &IdsToIndices) -> Cow<[u8]> { [INFO] [stdout] | ^^^^^ --------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 118 | fn data(&self, _: &IdsToIndices) -> Cow<'_, [u8]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/tombstone_arena.rs:104:21 [INFO] [stdout] | [INFO] [stdout] 104 | pub fn iter_mut(&mut self) -> IterMut { [INFO] [stdout] | ^^^^^^^^^ ---------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 104 | pub fn iter_mut(&mut self) -> IterMut<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.38s [INFO] running `Command { std: "docker" "inspect" "eed5862577ab7a52c534df4bfec2a610ae645f56e64023970ae7c16893abff03", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eed5862577ab7a52c534df4bfec2a610ae645f56e64023970ae7c16893abff03", kill_on_drop: false }` [INFO] [stdout] eed5862577ab7a52c534df4bfec2a610ae645f56e64023970ae7c16893abff03